Binding- engravings



W. T. ANDERSON. BINDING ENGRAVINGS, &c.

.No. 30,277. Patented Oct. 2, 1860.

12% asses.

' azam ma W UNITED STATES PATENT OFFICE.

WM. '1. ANDERSON, OF BROOKLYN, NEW YORK, ASSIGNOR TO HIMSELF AND H. S.ARCHER, OE BROOKLYN, NENV YORK.

BINDING ENGRAVINGS, &c.

Specification of Letters Patent No. 80,277, dated October 2, 1860.

To all whom it may concern:

Be it known that I, IVILLIAM T. ANDER- son, of Brooklyn, in the countyof Kings and State of New York, have invented an Improvement in BindingEngravings and Similar Articles, the construction and operation of whichI have described in the following specification and illustrated in itsaccompanying drawings with sufiicient clearness to enable competent andskilful workmen in the arts to which it pertains or is most nearlyallied to make and use my invention.

My invention consists in dividing the sheets, at aregularly graduatedseries of distances from the edges which are fastened to the cover,connecting the two parts of each sheet, by means of a strip of cloth orother suitable pliable material, which will act as a hinge, andarranging the sheets according to the amount cut oil from the edge nextto the back of the cover; those having the most cut off being placed inthe center, those having the next greater amount cut off being placednext, and so on to those having the least cut oif, which are placedoutside, thus preventing the breaking or the pulling out of the leavesor sheets, in open ing the book by means of the said joints as I havemore fully set forth in the following description.

In the accompanying drawings, Figure l is a perspective view, showingthe side, edge, and back of the book, after it is bound. Fig. 2 is aperspective view, showing the same parts of five sheets, removed fromthe outside.

They are slipped past each other so that the joints 1, 2, 3, 4, and 5 otthe leaves a, b, 0, (Z, and c, (a being the leaf which was outermost)and the manner in'which the breadth of the strips increases a, beingless than Z), which is less than 0, and so on to e, which if there werenone greater, would occupy the central place in the book. These fiveleaves make half of a book such as is represented by Fig. 1. In thislatter figure the dots 0, c, 0, show the oints in the sheets, and theway they are placed in the book. The manner in which they act, is asfollows: The book A, Fig. 1, is laid upon the back B, upon the desk ortable, and the lids or cover being thrown apart, the sheet a, bending atthe joint 1, allows the sheet 6, which bends at the joint 2, (a greaterdistance from the back B,) to overlap it without perceptibly bending,otherwise than at the joint. The sheet 0, bends in a like manner overthe sheet 7), and so on to the place at which the book is opened. But ifit is opened at either side of the center, the portion which has thegreater number of sheets, remains straight, and the other side bends asbefore described.

Having thus fully and clearly described and illustrated my invention,what I claim as original, and desire to secure by Letters Patent is Theconstruction and arrangement of the sheets, with joints, or hinges, atgraduated distances from the back of the cover, increasing from thesides toward the middle of the book, so that the inner leaves will foldover those outside of them, without breaking, or coming loose from thecover as herein described.

WM. T. ANDERSON. IVitnesses ELIZUR E. CLARKE, THOS. P. How.

